Abstract: By the end of 2021, the installed capacity of new energy power generation technology has exceeded 25% of the total installed capacity of China. Energy storage has become one the main factor restricting new energy power generation technology. This article reviews the current research of GES (gravity energy storage) and different types of energy storage technology are compared. It is concluded that GES has the advantages of long service life, high operating efficiency, completely pollution-free, large energy storage capacity and low LCOS(levelised cost of energy storage). Tower and mountain gravity energy storage are the two most promising methods of GES for commercial applications. Structure design has a great impact on LCOS, and it is also an important factor affecting system expansion. The control system determines the efficiency and load response rate of GES, which in turn affects its operating economy. Initial input cost is quite different for different types of GES systems, and a reasonable evaluation of LCOS is important for the commercial application of GES.